Bourbon is a purely American liquor and the pride of Kentucky, it is derived from corn, but other grains are involved. Bourbon must be at least 51 percent corn, at more than 80 percent , by Federal USA law it is denominated corn whiskey. We still think of bourbon in the genteel context of lush grass, horses, antebellum mansions, and branch water. The basis of the mint julep. On the other hand, we think of corn whiskey as the product made by the light of the moon by that quintessential American folk character, the hillbilly. But now with premix much of the bourbon can be conveniently enhanced with a variety of flavours in either cola, soda, lemonade, or ginger ale in a ready to drink pack type.